Paunonen, L. (2015). On Robust Output Regulation for Continuous-Time Periodic Systems. teoksessa 2015 Proceedings of the SIAM Conference on Control and its Applications SIAM, Society for Industrial and Applied Mathematics. https://doi.org/10.1137/1.9781611974072.7

Väljataga, T. (2011). Learner Control and Responsibility: Expanding the Concept of Self-direction in Hihger Education. (Tampere University of Technology. Publication; Vuosikerta 946). Tampere: Tampere University of Technology.